NPPES file of Aug 9, 2026

Internal Medicine Physician in California

17,696 NPPES records list internal medicine physician with a practice address in California, 45 per 100,000 residents, the 17th highest rate of 51. Los Angeles and San Francisco have the most; each record links to the provider's NPI and the California license search. Page 189 of 354.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207R00000X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Los Angeles has the most, 1,423

  1. Los Angeles1,423
  2. San Francisco1,318
  3. San Diego961
  4. Sacramento601
  5. Oakland432

Internal Medicine Physician records in California

  1. Dong Lu, MDAnaheim, CA 928071700953676
  2. Eric Lu, MDBurbank, CA 915051003311960
  3. Julia Lu, MDSan Diego, CA 921031831839828
  4. Julie Lu, MDLos Alamitos, CA 907201457401069
  5. Leslie Lu, MDMission Viejo, CA 926911104921402
  6. Monique LuRiverside, CA 925051407436207
  7. Richard Lu, M.D.Burlingame, CA 940101073621694
  8. Shanhong Lu, M.D.Mount Shasta, CA 960671255423299
  9. Susan Lu, MDOakland, CA 946091881653681
  10. Xing-Jian Lu, MDStockton, CA 952101023180833
  11. Yue LuWest Hollywood, CA 900481639443369
  12. Zhen Lu, MDSan Francisco, CA 941331326176397
  13. Zhi-Wen Lu, M.D.Glendora, CA 917411578746582
  14. Kongmany LuangrathFresno, CA 937011801423595
  15. Donald Luber, M.D.Tarzana, CA 913561356689665
  16. Stephen Luby, M.D.Stanford, CA 943051871928416
  17. Nicolae Luca, MDSacramento, CA 958121811126212
  18. Mei-Lai Lucas, MDSan Francisco, CA 941211104806058
  19. Rachael Lucatorto, M.D.San Francisco, CA 941431164443222
  20. John Luce, MDSan Francisco, CA 941101992927974
  21. Carvy Floyd Luceno, MDLoma Linda, CA 923541245895945
  22. Matthew Lucero, D.OAntioch, CA 945311972941334
  23. Alexis LudiOakland, CA 946121366948713
  24. Alison Ludwig, MDSan Francisco, CA 941171922203702
  25. Kenneth Lue, D.O.Los Angeles, CA 900331518260561
  26. Kate Luenprakansit, M.D.Stanford, CA 943051740570662
  27. Andrea Luethy, MDBerkeley, CA 947101861951170
  28. Henry Luh, MDMonterey Park, CA 917541417961889
  29. Allysa Lui, DOSan Francisco, CA 941171053003137
  30. Brandon LuiDowney, CA 902421003443235
  31. Yee-Bun Lui, M.D.Oakland, CA 946071609845767
  32. Emily Luk, M.D.Atascadero, CA 934221023118007
  33. Cazmo Lukrich, MDSan Jose, CA 951281417913153
  34. Daryl Lum, MDLos Angeles, CA 900951871512723
  35. Owen Lum, M.D.San Jose, CA 951251922022623
  36. Paula Lum, M.D., M.P.H.San Francisco, CA 941101811004559
  37. Ryan Lum, MDSan Rafael, CA 949031841374824
  38. Steven Luminais, MDFullerton, CA 928351427518752
  39. Britany LundbergSacramento, CA 958171437796547
  40. Ottar Lunde, M.D.San Diego, CA 921031932257268
  41. Adam Lundy, M.D.San Diego, CA 921231043667355
  42. Roy Lung, MDColton, CA 923241023050762
  43. Mitchell Lunn, M.D.Stanford, CA 943051467773598
  44. Albert Luo, M.D.Palo Alto, CA 943041700166840
  45. Becky Luo, M.D.San Jose, CA 951281427342112
  46. Esther Luo, M.D.San Jose, CA 951281861658585
  47. Kenyon Luo, MDNorth Hollywood, CA 916021114020500
  48. Daniel Luong, M.D.Garden Grove, CA 928441811420508
  49. Hing LuongFresno, CA 937021588755722
  50. Jean Luong, M.DSan Jose, CA 951281780615641

Source: CMS NPPES, primary taxonomy 207R00000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 17 of 51 per resident

  1. New Jersey50
  2. New Hampshire48
  3. Minnesota46
  4. California45
  5. Florida45
  6. Ohio45
  7. 50 states and D.C.44

Source: CMS NPPES, primary taxonomy 207R00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

79.5% of these records appear in a Medicare file, against 78.7% nationally

A Medicare file here is Part D prescribing (2024), a MIPS score (2023), an Open Payments record (2024) or Medicare group billing (CMS Doctors and Clinicians). A record outside them may still see patients: these files cover Medicare only.

  1. California79.5%
  2. United States78.7%

Internal Medicine Physician records in California, measured

  • In a Medicare file14,068 of 17,696 · 79.5% here, 78.7% nationally
  • In the CMS Doctors and Clinicians file11,077 · 62.6% here, 61.4% nationally
  • Not updated in five years or more10,832 · 61.2% here, 55.4% nationally
  • Median graduation year2004 · the 11,065 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207R00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

17,696 NPPES records list internal medicine physician (207R00000X) as their primary taxonomy with a practice address in California: 45 per 100,000 residents against 44 nationally (50 states and D.C.). Los Angeles has 1,423 of them (8%).

A record is a registration a provider made and keeps up to date: it shows neither that the provider is licensed nor that they still practice there. The state's own license search is the check.

States with a similar number

  1. New York12,067
  2. Florida10,151
  3. Texas9,175
  4. Pennsylvania7,300

States with a similar rate per 100,000

  1. Minnesota45.9
  2. Ohio44.8
  3. New Hampshire48.0
  4. Maine42.8

The largest states

  1. New York12,067
  2. Florida10,151
  3. Texas9,175
  4. Pennsylvania7,300
  5. Illinois7,238

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.